Method and apparatus for storing and dispensing a liquid composed of oxygen containing mixture
US6000226A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2265/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for storing and dispensing a liquid consisting of an oxygen containing mixture so that the liquid will not contain any more than a predetermined concentration of the oxygen at a predetermined pressure. In accordance with the invention, the mixture is introduced into the container at a specified initial concentration. A hypothetical volume of the saturated state of the liquid having the initial concentration is computed that when expanded into the total volume of the container, the resulting liquid would have the maximum enrichment. The liquid is dispensed from a bottom region of the container and dispensing is prevented when the liquid remaining within the container could possibly have the maximum enrichment computed at a particular dispensing pressure. Pressure relief methods are employed that avoid head space vapor being vented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.